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Java Formatter close()用法及代碼示例


close()方法是java.util.Formatter的內置方法,它將關閉格式化程序。如果它已經關閉,則將無效。關閉它意味著它將釋放它已經擁有的資源。

用法

public void close()

參數:該函數不接受任何參數。


返回值:該函數不返回任何內容,僅關閉格式化程序。因此,返回類型為void。

下麵是上述函數的實現:

示例1:

// Java program to implement 
// the above function 
  
import java.util.Formatter; 
import java.util.Locale; 
  
public class Main { 
  
    public static void main(String[] args) 
    { 
  
        // Get the string Buffer 
        StringBuffer buffer = new StringBuffer(); 
  
        // Object creation 
        Formatter frmt 
            = new Formatter(buffer, 
                            Locale.CANADA); 
  
        // Format a new string 
        String name = "My name is Gopal Dave"; 
        frmt.format("What is your name? \n%s !", 
                    name); 
  
        // Print the Formatted string 
        System.out.println(frmt); 
  
        // Prints the formatted string 
        // again since it is not closed 
        System.out.println(frmt); 
  
        // close the frmt 
        frmt.close(); 
    } 
}
輸出:
What is your name? 
My name is Gopal Dave !
What is your name? 
My name is Gopal Dave !

示例2:

// Java program to implement 
// the above function 
  
import java.util.Formatter; 
import java.util.Locale; 
  
public class Main { 
  
    public static void main(String[] args) 
    { 
  
        // Get the string Buffer 
        StringBuffer buffer 
            = new StringBuffer(); 
  
        // Object creation 
        Formatter frmt 
            = new Formatter(buffer, 
                            Locale.CANADA); 
  
        // Format a new string 
        String name = "Java programs are fun"; 
        frmt.format("%s !", name); 
  
        System.out.println(frmt); 
  
        // close the frmt 
        frmt.close(); 
    } 
}
輸出:
Java programs are fun !

參考: https://docs.oracle.com/javase/10/docs/api/java/util/Formatter.html#close()



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注:本文由純淨天空篩選整理自gopaldave大神的英文原創作品 Formatter close() method in Java with Examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。